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Title: Seismic survey, northwest Greenland, 1964
Authors: Dartmouth College.
Clarke, Garry K. C.
Keywords: Geophysical exploration
Seismic survey
Surveying methods
Ice cap
Ice sheet
Ice thickness
Snow cover
Issue Date: Jul-1966
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Research report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 191.
Description: Research Report
Abstract: The thickness of the Greenland Ice Cap has been determined by seismic sounding along the trail from Camp Tuto to Camp Century in Greenland and on traverses northwest and southwest from Camp Century. The average velocity of vertically traveling seismic waves at each shot location was estimated using the first-arrival data from reflection records and the 10-m temperature at each location. The results of three long refraction profiles and measurements of temperature, density, and seismic velocities at the Camp Century drill hole were used to check velocity estimates. An empirical formula from Robin (1958) satisfactorily related seismic wave velocities to the temperature and density of the firn and ice. A two-layer glacier model having a homogeneous ice layer overlain by a firn layer in which the P-wave velocity increased linearly with depth was used.
Appears in Collections:CRREL Research Report

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